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<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

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    <periodOfReport>2016-12-03</periodOfReport>

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    <issuer>
        <issuerCik>0001058290</issuerCik>
        <issuerName>COGNIZANT TECHNOLOGY SOLUTIONS CORP</issuerName>
        <issuerTradingSymbol>CTSH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001593839</rptOwnerCik>
            <rptOwnerName>SINHA DHARMENDRA KUMAR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O COGNIZANT TECHNOLOGY SOLUTIONS CORP.</rptOwnerStreet1>
            <rptOwnerStreet2>500 FRANK W. BURR BLVD</rptOwnerStreet2>
            <rptOwnerCity>TEANECK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07666</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President Global Client Serv.</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

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            <expirationDate>
                <value>2016-12-03</value>
                <footnoteId id="F5"/>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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                </underlyingSecurityShares>
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                <value>2016-12-03</value>
                <footnoteId id="F6"/>
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                <value>2016-12-03</value>
                <footnoteId id="F6"/>
            </expirationDate>
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                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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    <footnotes>
        <footnote id="F1">Shares of the Company's Class A Common Stock received from the vesting of 1/12 of the restricted stock unit award granted on December 3, 2013.</footnote>
        <footnote id="F2">Represents the portion of shares of Class A Common Stock that the Company determined to settle in cash to pay applicable tax withholding.</footnote>
        <footnote id="F3">Represents the number of shares of Class A Common Stock received from the vesting of 1/2 of the vested performance-based restricted stock units previously granted to the reporting person under the Cognizant Technology Solutions Corporation 2009 Incentive Compensation Plan on December 3, 2013.</footnote>
        <footnote id="F4">Each restricted stock unit represents a contingent right to receive one share of the Company's Class A Common Stock.</footnote>
        <footnote id="F5">The restricted stock units were granted on December 3, 2013 under the Cognizant Technology Solutions Corporation 2009 Incentive Compensation Plan and vest in quarterly installments over three years, with 1/12th of the stock units vesting on each quarterly vesting date so that the stock units will be fully vested on the twelfth quarterly vesting date. The stock units were fully vested on December 3, 2016.</footnote>
        <footnote id="F6">The performance-based restricted stock units were granted on December 3, 2013 under the Cognizant Technology Solutions Corporation 2009 Incentive Compensation Plan. In accordance with the performance-based restricted stock unit award, 1/2 of the vested performance-based restricted stock units were issued on June 3, 2015. The remaining 1/2 of the vested performance-based restricted stock units were issuable on December 3, 2016, provided that the reporting person remained in the Company's service through such anniversary date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Harry Demas, on behalf of Dharmendra Kumar Sinha, by Power of Attorney</signatureName>
        <signatureDate>2016-12-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
